*can extend to 250 terminals, controlled by VC-2003C. public address systemTerminal Server1. 30W,8-16Ω rated resistance output(VC-2331)2. 30W,8-16Ω rated resistance output can be divided into 2 way,15W8Ω rated resistance output(VC-2331+A)3. can extend to 250 terminals, controlled byVC-2003C